Given:

What is the result?（）

A.Line 5
B.Line 6
C.Line 7
D.Line 8
E.Line 9
F.Line 10

A.Compilation fails.
B.An exception is thrown at runtime.
C.doStuff x = 6 main x = 6
D.doStuff x = 5 main x = 5
E.doStuff x = 5 main x = 6
F.doStuff x = 6 main x = 5

A.Compilation fails.
B.An exception is thrown at runtime.
C.The attribute id in the ItemTest object remains unchanged.
D.The attribute id in the ItemTest object is modified to the new value.
E.A new ItemTest object is created with the preferred value in the id attribute.